CN210920197U - Vacuum holding device and vacuum device - Google Patents
Vacuum holding device and vacuum device Download PDFInfo
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- CN210920197U CN210920197U CN201921860186.2U CN201921860186U CN210920197U CN 210920197 U CN210920197 U CN 210920197U CN 201921860186 U CN201921860186 U CN 201921860186U CN 210920197 U CN210920197 U CN 210920197U
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Abstract
The utility model relates to a vacuum holding device, including vacuum cavity, flexible abnormal shape core pipe and the clamp plate that is used for assembling the vacuum device, the through-hole has been seted up to the afterbody of vacuum cavity, abnormal shape core pipe is hugged closely at the afterbody of vacuum cavity, and the afterbody of abnormal shape core pipe is equipped with the inside and outside slit of intercommunication, the clamp plate rigid coupling is on the vacuum cavity, and the clamp plate middle part is seted up and is led the anastomotic logical groove of core appearance with abnormal shape, and the clamp plate sticiss abnormal shape core pipe on. The utility model discloses still relate to a vacuum device, use with the cooperation of vacuum holding device, it is equipped with two archs on the terminal surface in the front, and when vacuum device seal assembly was on the clamp plate, two protruding roof pressures forced the slit to open in the both sides of abnormal shape core pipe afterbody slit. The utility model discloses a pure mechanical structure need not to connect the gas circuit. The vacuum device is taken down and kept vacuum at the same time, and the vacuum device does not need to be broken, so that the time for vacuumizing again is greatly saved, the working cost is saved, and the working efficiency is improved.
Description
Technical Field
The utility model relates to a vacuum holding device and vacuum device belongs to vacuum apparatus research technical field.
Background
Generally, several hours of vacuum pumping, even overnight stabilization, are required to reach the desired vacuum level in a moderately high vacuum system, and the pumping of vacuum occupies most of the maintenance time and the stabilization time. When the system is maintained, the vacuum is usually required to be removed, the vacuum is pumped after the maintenance is finished, the consumed time is very long, the stable operation of the vacuum system is not facilitated due to frequent startup and shutdown, and the pollution is easily introduced.
The vacuum maintaining system is a device capable of maintaining the vacuum degree of the rest parts stable when some devices in the vacuum system need maintenance. In the prior art, the device capable of realizing the emptying-free generally needs to be connected with a gas circuit, the stability of the vacuum degree is maintained through the pressure of gas, the operation is more complex, and the price is more expensive.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a vacuum maintaining device is provided, when the vacuum device need dismantle the maintenance, need not to connect the gas circuit and also can keep the stability of all the other device vacuums.
In order to solve the above problem, the utility model discloses a technical scheme as follows:
a vacuum holding device comprises a vacuum cavity, a flexible special-shaped core pipe and a pressing plate for assembling a vacuum device,
the tail part of the vacuum cavity is provided with a through hole for connecting the inside and the outside of the cavity,
the opening of the tube cavity of the special-shaped core tube is opposite to the through hole and is sealed and tightly attached to the tail part of the vacuum cavity, the tail part of the special-shaped core tube is provided with a slit for communicating the inside and the outside,
the pressing plate is fixedly connected to the vacuum cavity, a through groove matched with the special-shaped core pipe in shape is formed in the middle of the pressing plate, the special-shaped core pipe is located in the through groove, and the pressing plate presses the special-shaped core pipe tightly on the vacuum cavity through the through groove.
Further, the pipe cavity of the special-shaped core pipe is gradually contracted into a straight line at the tail part.
Furthermore, the tail part of the special-shaped core pipe is in a cross shape.
Furthermore, in order to apply pressure to the special-shaped core pipe by the pressing plate conveniently, the front end of the special-shaped core pipe is provided with a circular truncated cone structure.
Furthermore, in order to conveniently install the sealing ring and realize the sealing between the pressing plate and the vacuum device assembled on the pressing plate, an O-shaped sealing ring groove is formed in the end face of the tail part of the pressing plate.
Further, as a fixing mode, the pressing plate is fixedly connected to the vacuum cavity through screws.
The utility model also provides a vacuum device uses with the cooperation of above-mentioned vacuum holding device, and it has the vacuum channel of intercommunication vacuum holding device, and vacuum device is equipped with two archs on the terminal surface in the front, and two protruding symmetric distributions are in the both sides of vacuum channel port, and when vacuum device seals the assembly on the clamp plate, two protruding roof pressures force the slit to open in the both sides of abnormal shape core afterbody slit.
The utility model discloses an operating principle is, when vacuum device did not install on vacuum holding device, if vacuum acquisition device such as vacuum pump moves, including the slit of abnormal shape core pipe tail end outside air pressure differential's effect hug closely the closure down, realize vacuum seal, keep the stability of vacuum intracavity vacuum. After the vacuum device is installed through the pressing plate, the two bulges on the end surface of the vacuum device support against the two sides of the slit to force the slit to open, and the vacuum cavity, the special-shaped core tube and the vacuum device are communicated, so that the vacuum device can start to work. When the vacuum device needs to be disassembled, the connecting piece (such as a fixing bolt) between the vacuum device and the pressing plate is firstly taken off, then the vacuum device only needs to be directly pulled out, the slit of the special-shaped core pipe is instantly closed under the action of the internal and external pressure difference, the passage between the vacuum cavity and the outside is cut off, and the vacuum inside is continuously kept.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model discloses a pure mechanical structure need not to connect the gas circuit. The vacuum device is taken down and kept vacuum at the same time, and the vacuum device does not need to be broken, so that the time for vacuumizing again is greatly saved, the working cost is saved, and the working efficiency is improved.
2. The utility model discloses can avoid dismantling the damage to vacuum system repeatedly, be favorable to vacuum system's steady operation, avoid the vacuum cavity to receive the pollution.
3. The utility model discloses be suitable for extensively, can satisfy thick, the vacuum demand of middling.
4. The utility model discloses simple structure, processing convenience, pressure resistance are high, and preparation low cost has very high price/performance ratio.
Drawings
Fig. 1 is an assembly diagram of the vacuum holding apparatus and the vacuum device according to the present invention.
Fig. 2 is a schematic structural view of a special-shaped core tube in an embodiment of the vacuum holding apparatus of the present invention.
Fig. 3 is a schematic cross-sectional view of a special-shaped core tube in an embodiment of the vacuum holding apparatus of the present invention.
Fig. 4 is an assembly diagram of the special-shaped core tube and the pressing plate in an embodiment of the vacuum holding apparatus of the present invention.
Fig. 5 is a schematic structural diagram of an embodiment of the vacuum device of the present invention.
Fig. 6 is a schematic view illustrating a force application principle of two protrusions in an embodiment of the vacuum device of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. The objects, aspects and advantages of the present invention will become more apparent from the following description. It should be understood that the described embodiments are presently preferred, but not all embodiments of the invention.
Referring to fig. 1 to 3, a vacuum holding apparatus includes a vacuum chamber 1, a flexible profiled core tube 2, and a press plate 3 for assembling a vacuum device. The tail part of the vacuum cavity 1 is provided with a through hole 11 for connecting the inside and the outside of the cavity, the cavity opening 21 of the special-shaped core pipe 2 is opposite to the through hole 11 and is tightly sealed at the tail part of the vacuum cavity 1, and the tail part of the special-shaped core pipe 2 is provided with a slit 22 for communicating the inside and the outside. Preferably, the tube cavity of the special-shaped core tube 2 is gradually contracted into a straight line at the tail part; the tail part of the special-shaped core pipe 2 can be in a cross shape; in order to facilitate the pressure exerted on the special-shaped core tube by the pressure plate, the front end of the special-shaped core tube 2 is provided with a circular truncated cone structure 23.
Referring to fig. 2 and 4, the pressing plate 3 is fixedly connected to the vacuum chamber 1, a through groove 31 matched with the profile of the special-shaped core tube 2 is formed in the middle of the pressing plate 3, the special-shaped core tube is located in the through groove, and the pressing plate 3 presses the special-shaped core tube 2 against the vacuum chamber 1 through the through groove 31. In order to facilitate the sealing between the pressure plate 3 and the vacuum device assembled thereon by the sealing ring, an O-shaped sealing ring groove 32 is formed on the end surface of the tail part of the pressure plate 3. The pressure plate 3 may be fixed to the vacuum chamber 1 by screws.
Referring to fig. 5, a vacuum device, which is used in combination with the above-mentioned vacuum holding device, has a vacuum channel 51 communicating with the vacuum holding device, the vacuum device 5 is provided with two protrusions 52 on the front end surface, the two protrusions 52 are symmetrically distributed on both sides of the end opening of the vacuum channel 51, when the vacuum device 5 is hermetically assembled on the pressing plate 3, the two protrusions 51 are pressed against both sides of the slit 22 at the tail of the profiled core tube 2, so as to force the slit 22 to open. The vacuum device can be any device installed on the holding device, such as an electromagnetic valve, a gauge pipe, a joint and the like, and can be matched with the vacuum holding device for use as long as the technical characteristics are provided.
Referring to fig. 1, 5 and 6, the working principle of the present invention is that when the vacuum device 5 is not installed on the vacuum maintaining device, if the vacuum obtaining device such as the vacuum pump is operated, the slit 22 at the tail end of the abnormal core tube 2 is tightly closed under the effect of the pressure difference between the inside and the outside, so as to realize vacuum sealing and maintain the stability of the vacuum degree in the vacuum chamber. After the vacuum device 5 is installed through the pressing plate 3, the two protrusions 52 on the end surface of the vacuum device are pressed against the two sides of the slit 22 to force the slit 22 to open, and the vacuum cavity 1, the special-shaped core tube 2 and the vacuum device 5 are communicated, so that the vacuum device 5 can start to work. When the vacuum device 5 needs to be disassembled, the connecting piece (such as a fixing bolt) between the vacuum device 5 and the pressing plate 3 is firstly taken off, then the vacuum device 5 only needs to be directly pulled out, the slit 22 of the special-shaped core pipe 2 is instantly closed under the action of the internal and external pressure difference, the passage between the vacuum cavity and the outside is cut off, and the vacuum inside is continuously kept.
The above description is only for the purpose of illustration of the preferred embodiments of the present invention, and it is not intended to limit the scope of the present invention, and it is obvious that any person skilled in the art can easily conceive of alterations and modifications to obtain other embodiments based on the above embodiments, and these should be covered by the scope of the present invention.
Claims (7)
1. A vacuum holding apparatus characterized by: comprises a vacuum cavity, a flexible special-shaped core pipe and a pressing plate for assembling a vacuum device,
the tail part of the vacuum cavity is provided with a through hole for connecting the inside and the outside of the cavity,
the opening of the tube cavity of the special-shaped core tube is opposite to the through hole and is sealed and tightly attached to the tail part of the vacuum cavity, the tail part of the special-shaped core tube is provided with a slit for communicating the inside and the outside,
the pressing plate is fixedly connected to the vacuum cavity, a through groove matched with the special-shaped core pipe in shape is formed in the middle of the pressing plate, the special-shaped core pipe is located in the through groove, and the pressing plate presses the special-shaped core pipe tightly on the vacuum cavity through the through groove.
2. The vacuum holding apparatus according to claim 1, wherein:
the pipe cavity of the special-shaped core pipe is gradually contracted into a straight line at the tail part.
3. The vacuum holding apparatus according to claim 1, wherein:
the tail part of the special-shaped core pipe is in a cross shape.
4. The vacuum holding apparatus according to claim 1, wherein:
the front end of the special-shaped core pipe is provided with a circular truncated cone structure.
5. The vacuum holding apparatus according to claim 1, wherein:
and an O-shaped sealing ring groove is formed in the end face of the tail part of the pressing plate.
6. The vacuum holding apparatus according to claim 1, wherein:
the pressure plate is fixedly connected to the vacuum cavity through screws.
7. A vacuum device for use with the vacuum holding apparatus of any one of claims 1 to 6, wherein:
the vacuum device is provided with a vacuum channel communicated with a vacuum holding device, two bulges are arranged on the front end surface of the vacuum device and symmetrically distributed on two sides of the port of the vacuum channel, and when the vacuum device is hermetically assembled on a pressing plate, the two bulges are pressed on two sides of a slit at the tail part of a special-shaped core tube to force the slit to open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860186.2U CN210920197U (en) | 2019-10-31 | 2019-10-31 | Vacuum holding device and vacuum device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860186.2U CN210920197U (en) | 2019-10-31 | 2019-10-31 | Vacuum holding device and vacuum device |
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| Publication Number | Publication Date |
|---|---|
| CN210920197U true CN210920197U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921860186.2U Active CN210920197U (en) | 2019-10-31 | 2019-10-31 | Vacuum holding device and vacuum device |
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| CN (1) | CN210920197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701338A (en) * | 2019-10-31 | 2020-01-17 | 清谱（上海）分析仪器有限公司 | Vacuum holding device and vacuum device |
-
2019
- 2019-10-31 CN CN201921860186.2U patent/CN210920197U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701338A (en) * | 2019-10-31 | 2020-01-17 | 清谱（上海）分析仪器有限公司 | Vacuum holding device and vacuum device |
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Address after: 501, 601, Building G4, Artificial Intelligence Industrial Park, No. 88, Jinjihu Avenue, Suzhou Industrial Park, Suzhou Area, China (Jiangsu) Pilot Free Trade Zone, Jiangsu Province, 215000 Patentee after: Qingpu Technology (Suzhou) Co.,Ltd. Address before: 201613 Room 401, Floor 4, Building 12, No. 68, Zhongchuang Road, Songjiang District, Shanghai Patentee before: QINGPU (SHANGHAI) ANALYSIS APPARATUS Co.,Ltd. |
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